/*==========================公共样式======================*/
/* == clearfix == */
.clearfix:after {   /*在元素的内容之后插入新内容*/
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden; /*元素不可见*/
}
.clearfix { /*元素后面添加清除浮动元素 用来清撑不出高*/
    zoom: 1;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.clear{ /*规定元素左右两侧不允许有浮动*/
    clear: both;
}

.col-gray{
    color: #999999;
}
.col-white{
    color: white;
}
.font-bold{
    font-weight:bold;
}

.content{
    width: 1200px;
    margin: 0 auto;
    position: relative;
}
.content-fluid{
    width: 100%;
    min-width: 1200px;
    margin: 0 auto;
    position: relative;
}